Render Photo Grid Card Agent Skill
Render a 'photo-grid promo card' video from a config — a real-DOM card with a FIXED header/footer and a CONTINUOUSLY SCROLLING 2-row grid of MIXED tiles (video clips, product/lifestyle stills, big-serif %-OFF, dark promo-code or CTA) + feature chips, frame-stepped via Playwright with real-time <video> playback and encoded with FFmpeg — deterministic assembly, FREE (the clips + music come from create-video-fal + create-music-elevenlabs), text stays pixel-crisp. Use for the photo-grid-promo-card format.
Install
one command, takes just this skill from the repositorynpx skills add https://github.com/gooseworks-ai/goose-skills --skill render-photo-grid-cardWhat comes with it
17 403 bytes besides the instructionThe instruction itself
3 sections, as written by the authorrender-photo-grid-card
Render the 'photo-grid promo card' format from a config. The signature of this format is a
continuously scrolling 2-row grid (NOT a static card) under a fixed header (brand
wordmark + big headline + sub) and fixed feature chips. The grid-viewport scrolls left
across the whole ~10s, edge-faded with a CSS mask, and its tiles are mixed media:
video clips playing inside tiles, band-product/photo stills, big-serif pct/off
type tiles, and a dark code (promo code) or cta tile.
The renderer itself is FREE/deterministic (Playwright frame-step + FFmpeg). The paid inputs
are separate capabilities: the tile clips come from create-video-fal (i2v of the
product heroes, or clips extracted from the brand's own ad corpus) and the music from
create-music-elevenlabs. Text (wordmark, %, code) is real DOM — never AI-rendered.
Run
build_card.py --config config.json --out hyperframe.html ; render.py --config config.json --html hyperframe.html --out master-silent.mp4 — 1080x1920, scrolling grid, deterministic, $0.
Clip tiles are driven by FRAME-SWAP, not <video>: render.py pre-extracts each clip to
PNG frames with ffmpeg, preloads them, and swaps each <img class="vidframe">'s src per
output frame. This is because Playwright's bundled Chromium can't decode <video> H.264
over file:// (open-source build, no proprietary codecs) — it hangs on canplay. Letting
ffmpeg decode makes it codec-independent AND deterministic. Provide clips longer than the
master (or the swap just loops them); a subtle setpts-slow reads as cinematic.
Contract
- Deterministic + FREE (Playwright frame-step + FFmpeg); no paid calls in this capability.
- Tiles-per-row = grid columns (
cols), NOT total tiles; the grid fills row-major. - The template recipe (DB) supplies the config; clips + music are separate capabilities.
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How to use it
Take gooseworks-ai/render-photo-grid-card from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.